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I56-3878-000 NFXI-BEAM(T)_EN.pmd
I56-3878-000 NFXI-BEAM(T)_EN.pmd

... vertical alignment knobs one at a time to increase signal level on the display. Continue adjusting each axis one at a time going back and forth between them until a peak value is indicated. If a value of 90 is achieved, the detector will reduce it’s electronic gain. This will be indicated by a “- -” ...
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... Requirements R7, R8 and R9) that do not have continuous recording capability shall set its devices to trigger and record according to the following: R11.1. For rate-of-change of frequency. R11.2. For oscillation triggers, set to trigger for low frequency oscillations in 0.1 to 4 Hz range. R11.3. Set ...
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... convert to in ohms? What is used to bypass circuit components to identify faulty portions of the circuit? What displays voltage as a line across a cathode ray tube or liquid crystal screen? The purpose of a work order is to _____________. A work order typically includes the ___________. The purpose ...
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...  For a 24-VDC power supply, use a power supply device with double insulation or reinforced insulation. There is a risk of electric shock.  Do not damage, pull on, apply excessive force to, place heavy objects on, or pinch cables. There is a risk of failure, damage, or electric shock.  The person ...
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... three conduit lines are normally required to transmit the power for one 66 kV, 1 kA circuit. With these lines, if the demand for electric power expands to the extent that a threefold increase in transmission capacity is required, six new conduit lines must be installed to lay the new cable. Using a ...
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Fault tolerance



Fault tolerance is the property that enables a system to continue operating properly in the event of the failure of (or one or more faults within) some of its components. If its operating quality decreases at all, the decrease is proportional to the severity of the failure, as compared to a naively designed system in which even a small failure can cause total breakdown. Fault tolerance is particularly sought after in high-availability or life-critical systems.A fault-tolerant design enables a system to continue its intended operation, possibly at a reduced level, rather than failing completely, when some part of the system fails. The term is most commonly used to describe computer systems designed to continue more or less fully operational with, perhaps, a reduction in throughput or an increase in response time in the event of some partial failure. That is, the system as a whole is not stopped due to problems either in the hardware or the software. An example in another field is a motor vehicle designed so it will continue to be drivable if one of the tires is punctured. A structure is able to retain its integrity in the presence of damage due to causes such as fatigue, corrosion, manufacturing flaws, or impact.Within the scope of an individual system, fault tolerance can be achieved by anticipating exceptional conditions and building the system to cope with them, and, in general, aiming for self-stabilization so that the system converges towards an error-free state. However, if the consequences of a system failure are catastrophic, or the cost of making it sufficiently reliable is very high, a better solution may be to use some form of duplication. In any case, if the consequence of a system failure is so catastrophic, the system must be able to use reversion to fall back to a safe mode. This is similar to roll-back recovery but can be a human action if humans are present in the loop.
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